This study presents a full-duplex Radio-over-Fiber (RoF) system providing the users' wireless access with a bit rate of 10 Gbps over 40 GHz radio carrier. This system can be used in a centralized radio access network (C-RAN) architecture because we provide a fully analog front haul link between central station and base station. We can consider it as infrastructure between remote radio heads (RR...

A multilayer, full chip thermal analysis is presented. The design of the chip at functional-block level is directly captured to the simulator, allowing the assessment of the chip layout impact on the system performance due to the elevated operational temperature. The heat generation for each block is obtained by running the circuit-level electrical simulation separately on individual functional...

a considerable amount of energy is released in the form of shock wave from explosive charge detonation. shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. the rest of the shock wave energy is transferred to rock mass as ground vibration. ground vibration is conveyed to the adjacent structures by body and surface waves. geological structures li...

Simulation of free surface flow and sudden wave profile are recognized as the most challenging problem in computational hydraulics. Several Eulerian/Lagrangian approaches and models can be implemented for simulating such phenomena in which the smoothed particle hydrodynamics method (SPH) is categorized as a proper candidate. The incompressible SPH (ISPH) method hires a precise incompressible hy...

Current main-stream non-casual modelling and simulation languages, like Modelica, are designed and implemented on the assumption that model causality remains fixed during simulation. This simplifies the language design and facilitates the generation of efficient simulation code. In particular, simulation code can be generated once and for all, at compile time. However, for hybrid models, the as...

In this paper we setup a model based on complex medium (composite), which considers randomly distributed characteristics of medium. A finitedifference method (FDM) of estimating velocity for composite based on elastic-wave theory is used. The FDM wave equation using stress-particle velocity equations, and the scheme is second–order accurate in time and eight-order accurate in space, In order to...

The FDTD and the Haar-based MRTD algorithms are applied to the full-wave modeling of high-frequency structures that require the combination of differential equations with time-constants of different orders. The numerical coupling of Maxwell's and mechanical equations for the simulation of a MEMS capacitor and of Maxwell's and solid-state equations for a pn diode is discussed in detail.

This paper presents the application of using the macromodels for modeling the interconnections in some fairly complex digital high speed circuits. The analysis which is based on a time domain full wave approach, deals with signal integrity. The results of this simulation are compared with measurements, and sources of error are discussed.